4404530421 has 6 divisors (see below), whose sum is σ = 6362099510. Its totient is φ = 2936353608.

The previous prime is 4404530413. The next prime is 4404530423. The reversal of 4404530421 is 1240354044.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2599470225 + 1805060196 = 50985^2 + 42486^2 .

It is not a de Polignac number, because 4404530421 - 2³ = 4404530413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4404530423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244696126 + ... + 244696143.

Almost surely, 2^4404530421 is an apocalyptic number.

It is an amenable number.

4404530421 is a deficient number, since it is larger than the sum of its proper divisors (1957569089).

4404530421 is a wasteful number, since it uses less digits than its factorization.

4404530421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489392275 (or 489392272 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 4404530421 is about 66366.6363544213. The cubic root of 4404530421 is about 1639.2047528761.

Adding to 4404530421 its reverse (1240354044), we get a palindrome (5644884465).

The spelling of 4404530421 in words is "four billion, four hundred four million, five hundred thirty thousand, four hundred twenty-one".